CVE-2024-1635
Vulnérabilité élevée
Description
A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available. At HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak.
Gravité et risque d'exploitation
CVE-2024-1635 obtient un score CVSS de 7.5/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 4.57 %, ce qui la place devant 91.5 % des CVE référencées.
Que faire ?
- Vérifiez si le produit concerné (versions 0:5.0.3-2.redhat_00002.1.ep7.el7, 1.31.0, 0:18.0.13-1.redhat_00001.1.el9sso, 0:2.10.4-3.redhat_00006.1.el7eap, 0:2.2.30-1.SP1_redhat_00001.1.el8eap, 0:7.3.14-3.GA_redhat_00002.1.el7eap, 0:2.10.4-2.redhat_00006.1.el7eap, 0:4.1.63-5.Final_redhat_00003.1.el7eap, <*, 0:18.0.13-1.redhat_00001.1.el8sso, 1:1.5.5.016-1.redhat_00001.1.ep7.el7, 7.6-46, 0:1.7.2-16.Final_redhat_00017.1.el7eap, 0:2.0.41-4.SP5_redhat_00001.1.el7eap, 0:2.2.30-1.SP1_redhat_00001.1.el9eap, 0:2.0.10-2.redhat_00002.1.ep7.el7, 0:1.14.2-1.redhat_00002.1.ep7.el7, 0:2.10.4-5.redhat_00006.1.el7eap, 2.2.30.SP1-redhat-00001, 0:2.2.30-1.SP1_redhat_00001.1.el7eap, 0:1.4.18-14.SP13_redhat_00001.1.ep7.el7, 0:18.0.13-1.redhat_00001.1.el7sso, 0:7.1.10-2.GA_redhat_00002.1.ep7.el7, 0:3.5.11-1.Final_redhat_00001.1.ep7.el7, 0:1.10.17-1.Final_redhat_00001.1.el7eap, 0:1.5.5.016-1.redhat_00001.1.ep7.el7) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://access.redhat.com/errata/RHSA-2024:1674
- https://access.redhat.com/errata/RHSA-2024:1675
- https://access.redhat.com/errata/RHSA-2024:1676
- https://access.redhat.com/errata/RHSA-2024:1677
- https://access.redhat.com/errata/RHSA-2024:1860
- https://access.redhat.com/errata/RHSA-2024:1861
- https://access.redhat.com/errata/RHSA-2024:1862
- https://access.redhat.com/errata/RHSA-2024:1864
- https://access.redhat.com/errata/RHSA-2024:1866
- https://access.redhat.com/errata/RHSA-2024:3354
- https://access.redhat.com/errata/RHSA-2024:4884
- https://access.redhat.com/errata/RHSA-2025:4226
- https://access.redhat.com/errata/RHSA-2025:9583
- https://access.redhat.com/security/cve/CVE-2024-1635
- https://bugzilla.redhat.com/show_bug.cgi?id=2264928
